MH
Margaret Hamilton — 1940 US Census Record
Model Tree available1940 United States Federal Census · Berkshire-County, Massachusetts
Our Model Tree links this Margaret Hamilton across the 1920, 1930 and 1940 US Censuses in Berkshire-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & Margaret — first a spouse (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Berkshire-County, Massachusetts |
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Pittsfield |
| 1935 Residence (County) | Berkshire |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | City Of Pittsfield |
| Est. Birth Year | ~1913 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Daniel Hamilton | Head | — | 35 | ~1905 |
| Margaret Hamilton | Daughter | — | 5 | ~1935 |
| Margaret Hamilton | Spouse | — | 27 | ~1913 |
| Daniel Hamilton | Son | — | 2 | ~1938 |
Census Appearances
1920
Berkshire, Massachusetts
Daughter, age 8
Berkshire, Massachusetts · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Berkshire, Massachusetts
Daughter, age 18
Berkshire, Massachusetts · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 18 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Berkshire-County, Massachusetts
Spouse, age 27
Berkshire-County, Massachusetts · implied b. ~1913 — 4 household members
| Surname | Hamilton |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Pittsfield |
| 1935 Residence (County) | Berkshire |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Margaret Hamilton across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Hamilton (~0.92 confidence) and mother Margaret Hamilton (~0.92 confidence) and father James Hamilton (~0.60 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.81
Father
James Hamilton
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Margaret Hamilton
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
James Hamilton
b. ~1905
Source father
● Household
· direct · ~0.6
This person
Anchor record
Margaret Hamilton
Spouse · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Berkshire-County, Massachusetts
Open full size
1940 US Federal Census — Berkshire-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01570-00516)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James F. Garrity | 52 | Head | Foreman | Massachusetts |
| 42 | Ruth E. Garrity | 48 | Wife | — | Massachusetts |
| 43 | Francis J. Garrity | 18 | Son | — | Massachusetts |
| 44 | Edward A. Garrity | 50 | Head | Clerk | Massachusetts |
| 45 | Emma B. Belat | 56 | Head | — | New York |
| 46 | Wilfred Belat | 27 | Son | Spinner | Massachusetts |
| 47 | Nelson Belat | 21 | Son | City Worker | Massachusetts |
| 48 | Henry Belat | 24 | Son | Carpenter | Massachusetts |
| 49 | Rose Belat | 27 | Daughter | Spinner | Canada |
| 50 | Ronnie Belat | 10 | Son | — | Massachusetts |
| 51 | Joseph Oliver | 59 | Head | Laboratory | Massachusetts |
| 52 | Florence Oliver | 64 | Wife | Nurse | Massachusetts |
| 53 | Warren Tucker | 30 | Lodger | Carpenter | Vermont |
| 54 | Mary Longe | 77 | Head | — | France |
| 55 | Edward Donlan | 48 | Head | Janitor | Massachusetts |
| 56 | Nanette Donlan | 48 | Wife | Sheeter | France |
| 57 | John D. Donovan | 44 | Head | Plumber | Massachusetts |
| 58 | Anne E. Donovan | 48 | Wife | Spooler | France |
| 59 | John E. Donovan | 21 | Son | Reeler | Massachusetts |
| 60 | Thomas A. Donovan | 18 | Son | — | Massachusetts |
| 61 | William J. Welsh | 27 | Head | Driver | Massachusetts |
| 62 | Georgette Welsh | 20 | Wife | — | Massachusetts |
| 63 | Clara F. Peace | 25 | Lodger | Mechanic | Massachusetts |
| 64 | Mary Peace | 16 | Lodger | — | Massachusetts |
| 65 | Adam Lawtwell | 31 | Head | Assembler | Massachusetts |
| 66 | Bernice Lawtwell | 26 | Wife | Cleaner | Massachusetts |
| 67 | Phylis Lawtwell | 5 | Daughter | — | Massachusetts |
| 68 | Daniel Hamilton | 35 | Head | Repair Man | Ireland |
| 69 | Margaret Hamilton THIS PERSON | 27 | Wife | — | Massachusetts |
| 70 | Margaret E. Hamilton | 5 | Daughter | — | Massachusetts |
| 71 | Daniel J. Hamilton | 2 | Son | — | Massachusetts |
| 72 | Alfred Dorman | 78 | Head | Retired | Germany |
| 73 | Leonard La-Blanc | 40 | Head | Assembler | Canada |
| 74 | Bella La-Blanc | 30 | Wife | — | Canada |
| 75 | Leonard La-Blanc | 14 | Son | — | Massachusetts |
| 76 | Rosemary La-Blanc | 12 | Daughter | — | Massachusetts |
| 77 | Marilyn La-Blanc | 8 | Daughter | — | Massachusetts |
| 78 | Anne La-Blanc | 4 | Daughter | — | Massachusetts |
| 79 | Paul La-Blanc | 2 | Son | — | Massachusetts |
| 80 | Joseph Darrow | 70 | Head | — | New York |
Related Census Records
Pedigree Summary
Margaret
Gen 1 · 3 parents
~0.81
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)